Category Archives: geology

Hotspot volcanism on Hawaii: textbook vs reality

Just like an iceberg, the parts of the Hawaiian Islands that you see above the ocean surface are dwarfed in volume by the stuff below the waves. For a start, any volcano that forms in the middle of the Pacific … Continue reading

Categories: geology, outcrops, photos, tectonics, volcanoes

Scenic Saturday: seeing geology everywhere

One of the gifts of a geological education (or one of the curses, if you are one of our long-suffering friends) is that our habit of looking for patterns in the landscape – the evidence of past worlds preserved in … Continue reading

Categories: geology, geomorphology, photos

Drawing sharp boundaries in a fuzzy world

Humans are natural splitters. We have an innate tendency to look at the world and mentally sort everything into different categories, and grades, and entities: this is one thing, that is another; it was this, now it’s that. Our perception … Continue reading

Categories: general science, geology

A mountain (meta)geologist

As you might have noticed, my blogging has been a little thin on the ground recently, which means I have been remiss in pointing you to some sterling posts from fellow All-geo blogger Simon Wellings, who is writing a whole … Continue reading

Categories: geology, links, structures, tectonics

Geological maps: still interesting even when there’s only one rock type

The USGS, in collaboration with NASA, have just released a geological map of Jupiter’s ultra-volcanically active moon Io, based on images from the Voyager and Galileo probes. It is a thing of beauty. The sheer variety of different geological units … Continue reading

Categories: geology, planets, volcanoes